JPH02229039A - Composite packaging material for ptp packaging - Google Patents

Abstract

PURPOSE:To attain low costing of the title material, by a method wherein the innermost layer coming into contact with content goods is formed of polyacrylonitrile and a polyvinyl chloride layer is laminated on the innermost layer. CONSTITUTION:The innermost layer coming into contact with content goods is formed of polyacrylonitrile and a polyvinyl chloride layer 3 is laminated to a PAN layer 2. Since suction and infiltration of a perfuming ingredient is prevented by an PAN layer 2 of the innermost layer and perfume of content goods can be protected favorably, the title material is used effectively for PTP packaging of medical supplies such as a tablet. Moreover, even if PAN is used, a thickness of the PAN layer 2 can be made into an extent of 10-30mum and even if the same is put together with a PVC layer 3 the thickness can be made into the extent of 100-500mum. The PVC layer laminated onto the PAN layer acts effectively as a buffer layer at the time of thermal adhesion and displays favorable thermal adhesion properties even if the PAN layer is made into such a thin layer of 10-30mum. A film obtained by applying a polyester series film or vinyl chloride series or vinyl acetate coating respectively to a metallic foil such as an aluminum foil or an ordinally synthetic resin film is used suitably.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a composite packaging material that can be suitably used as an FTP main material when FTP packaging pharmaceuticals such as tablets and capsules.

The problem that Kinobi tries to solve Conventionally, tablets,
FTP packaging materials for filling pharmaceuticals such as capsules include polyvinyl chloride/L/(PVC) and high-density polyethylene (HDPE).

Polypropylene (PP) etc. are used, especially P
The mainstream is one using VC.

However, these packaging materials are not necessarily satisfactory in terms of safety and non-adsorption of young components, and packaging materials for FTP packaging that are further improved in these respects are desired.

As a result of studying such packaging materials, the present inventor found that polyacrylonitrile (PAN), which has excellent gas barrier properties,
However, since PAN is a very expensive material, there was a problem in that it was disadvantageous in terms of cost.

The present invention was made in view of the circumstances described in item 1, and by using PAN, it is possible to effectively prevent adsorption and penetration of young ingredients, and it is possible to FTP package products containing young ingredients such as pharmaceuticals. It is an object of the present invention to provide a composite packaging material that can be effectively used for PAN and does not cause a large increase in cost even when PAN is used.

In order to achieve the above-mentioned problems, the present invention is characterized in that the innermost layer in contact with the contents is made of polyacrylonitrile, and a polyvinyl chloride layer is laminated on the innermost layer. Provides a combination packaging material for FTP packaging with characteristics.

One cow, one farm - According to the present invention, the innermost layer in contact with the contents is formed of polyacrylonitrile (1" A N ), and the P
By laminating a polyvinyl chloride (PVC) layer on the A N layer, the innermost PAN layer prevents adsorption and penetration of younger ingredients, and protects the aroma of the contents well, making it possible to protect tablets, etc. It is effectively used for FTP packaging of pharmaceutical products, and even if PAN is used, the thickness of the PA, N layer is about 10 to 30-30 mm, and even when combined with the PVC layer, the thickness is about 100-100 mm.
It can be about 500 ul+. Also, I)
The thermal adhesion of A and N usually decreases when PA and N are thin, but in the present invention, the PVC layer laminated on the PA and N layers effectively acts as a buffer layer during thermal bonding.
Even when the PA and N layers are as thin as 10 to 30 layers, they exhibit good thermal adhesion.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.

Figure 1 shows a composite packaging material 1 according to an embodiment of the present invention. In the figure, 2 is the innermost layer in contact with the contents made of polyacrylonitrile (PAN). Polyvinyl chloride (PVC) is applied directly to one surface of the layer 2 or via an antiaging agent.
) Layer 3 is laminated.

Here, the thickness of the PAN layer 2 is not particularly limited, but it is preferably about 10 to 30 thicknesses from the viewpoint of merit. Also, P V Cffi
The thickness of No. 3 can be 100/11 to 500/11.

When carrying out PTP packaging using the above composite packaging material 1, the composite packaging material]- is heated as shown in FIG.
A four part 4 is formed by vacuum molding or pressure molding, a content 5 such as a tablet is housed in the four part 4, and a recess 4 is formed with a lid 6.
One end is covered and sealed.

In this case, the lid material 6 may be a polyester film 22 (product name: Besnato, manufactured by Toagosei Co., Ltd.) or an ordinary synthetic resin film coated with vinyl chloride or vinyl acetate paint on a metal tube of an aluminum harekasa. It is preferable to use a laminated film made of laminates, and the four parts 4 can be placed on the composite packaging material 1 and sealed, and the M4 can be easily opened. .

- According to the composite packaging material 1 described in item 1, the inner layer in contact with the contents (tablets) is formed of polyacryliconi-1-lyl, which has excellent safety and gas barrier properties, so that the younger components of the contents can be adsorbed and penetrated. Effectively prevents damage and improves the quality of the contents.
Furthermore, even when polyacrylonitrile (pA, N) is formed in a thin layer of 10 to 30 μs, the effect is reliably exhibited, and thus a low cost is achieved. be done. Furthermore, due to the buffering effect of PVCJW, good thermal adhesion can be obtained even when the PAN layer is made as thin as 10 to 30 rEn as described in -1-.

Note that the composite packaging material for FTP packaging of the present invention is not limited to the above-mentioned examples, and for example, one layer or two or more layers may be used between the innermost polyacrylic vinyl layer and the polyacrylic vinyl layer. There is no problem in forming an intermediate layer (preferably an olefin resin from the viewpoint of buffering properties) or forming an appropriate surface layer on the polyvinyl chloride layer, and the structure thereof is within the scope of the gist of the present invention. can be changed in various ways.

Advent of the invention The innermost layer of the composite packaging material of the present invention, which is in contact with the contents, is made of polyacrylonitrile, which has excellent gas barrier properties and safety. Even when P-packaged, the younger components of the contents will not be adsorbed or penetrated, and the quality of the contents will not be impaired. In addition, since the innermost polyacrylonitrile layer is laminated with a polyvinyl chloride layer, it has excellent strength.Furthermore, this polyvinyl chloride layer acts effectively as a buffer layer during thermal bonding, so the polyacrylonitrile layer can be made thinner. Even when formed, it has good thermal adhesion properties, and therefore the polyacrylonitrile layer can have a thickness of about 10 to 30 tones,
Cost reduction can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing one embodiment of the composite packaging material of the present invention, and FIG. 2 is a cross-sectional view showing a state in which tablets are FTP-packed using the same packaging material. 1... Composite packaging material 2 Polyacrylonyl 1-lyl layer 3... Polyvinyl chloride layer 4... Concave portion 5.
・Tablet 6・・Lid Ganto Murayama Fujimori Industries Co., Ltd. Agent Patent Attorney Takashi Kojima Tsukazu

Claims (1)

[Claims] 1. A composite packaging material for PTP packaging, characterized in that the innermost layer in contact with the contents is made of polyacrylonitrile, and a polyvinyl chloride layer is laminated on the innermost layer.